Purpose: By increasing knowledge about the role of the brand in the success of industrial markets, the attention of buyers and suppliers in the industrial market, understanding the major factors affecting the performance of the industrial brand becomes important. Today, the petrochemical industry has played an important role in non-oil exports. Therefore, companies related to the petrochemical industry can play an effective role in the economic development of the country by creating an...
Topic: Brand performance Petrochemical industry Sales profit Dimatel
Purpose: In this paper k- level constant stress accelerated life test under Type-I progressive censoring for Lomax distribution with non-constant shape and scale parameters is investigated. The purpose of this paper is to estimate the model parameters using the EM algorithm and optimize the test design. Methodology: Life testing often consumes a very long time for testing and this is a fundamental problem in test design. This problem is solved by accelerated life tests. There is a recommended...
Topic: EM algorithm Maximum likelihood estimation Numerical methods Periodic inspection Test design...
Purpose : Implementing a credit rating system considering banks' deferred claims is one of the most important means of controlling credit risk in banks and financial institutions. In the case of banking facilities, the possibility of non-repayment of facilities is one of the most important issues. By identifying various factors that affect the non-repayment of bank facilities, it is possible to provide a framework for reducing and controlling the credit risk of banks and improving the crediting...
Topic: Credit rating Credit risk Credit rating institutions Data envelopment analysis Efficiency
Purpose: The purpose of this paper is to propose an improved genetic algorithm to solve the problem of Uncapacitated Single-allocation Hub Location. Previous methods have paid less attention to the diversity of population, and due to insufficient vairation in mutation operators, they perform well only in a few runs, and in other runs they are caught in the local optimum. Methodology: The proposed method uses appropriate genetic operators to increase diversity of the population and performs...
Topic: Genetic algorithm Meta-heuristic algorithms Local search Hub location
Purpose : In CNC machines, changes in machining conditions such as speed and feed rate will also change the operating time. Changes in these conditions also result in changes in the production cycle time and production costs. Tool life is also sensitive to these changes. Appropriate machining time is generally determined by assuming a certain lifetime for CNC machine tools to minimize production costs. However, minimizing costs usually results in increased machining time and lower output rates....
Topic: Single machine robotic cell CNC machines Two-objective optimization
Purpose: One of the topics for manufacturers today is to discuss the diversity of customer tastes, which to manage this situation with the least change in products, requires multiple lines that have the necessary flexibility to produce these products. On the other hand, many products require assembly operations. The main purpose of this article is to balance these issues according to the conditions of the workforce and different products. Methodology: This paper presents two mathematical...
Topic: Assembly Line Balancing and Sequencing Multi-model Learning and Forgetting Effects
Purpose: This paper aims to propose a model for detecting the most profitable or the optimal Turning Points (TPs) existing in the history of the financial tool's time series. The profitable trading strategy, which is known as a tool for gaining profit in the Stock Exchange, is the strategy formed from the profitable trading points. Trading points, in the corresponding literature, are known as TPs. TPs prediction is a tool for the achievement of a profitable trading strategy. The first step...
Topic: Turning Points (TPs) detection Dynamic Programming (DP) Trading strategy Financial tool
Purpose: Today, the advent of blockchain technology has changed the way businesses do business, the size and scope of different organizations. One of these areas is the supply chain, which has many stakeholders, and blockchain, with its unique features, effectively responds to the various challenges in this area. Implementing this technology, like other technologies, has many challenges. Hence, these challenges must be carefully identified and analyzed to minimize their adverse impacts to use...
Topic: Multiple attribute decision-making
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